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About Decoding The Solar System
This is for the first time a geologist has attempted to understand the entire Solar System with the help of a global tectonics. The concept of plate tectonics has been found to be unsuitable for explaining planetary features whereas the expansion-based concept 'unified global tectonics' developed by the author (Earth - The Planet Extraordinary, Subhasis Sen, 2007, Allied Publishers, New Delhi, India), explains various vaguely defined and little understood phenomena of planetary objects in a completely new manner satisfying all aspects of sciences. In the concept of unified global tectonics, which has been advanced following the model of Earth's expansion developed in 1933 by Hilgenberg, it has been conceived that during the last 200 million years the Earth has expanded along its radial thickness. The author has pointed out that since in such a model of primordial Earth oceans were not developed, the ocean-forming water at that stage must have been associated with the mantle. Therefore, at that stage the process of expansion was possible since the Earth's mantle was considerably fluid because of incorporation of ocean-forming water under pressure. This view is based on the results of experimental studies conducted by Roy and Tuttle in 1961 confirming depression of melting point of silicate rocks under hydrothermal and ultra-high pressure condition. In consequence of massive planetary expansion, which appears to have taken place in a slow manner due to gravitational pull of an extraterrestrial object, possibly the Moon, which was eventually captured by the bigger planet Earth. The Earth's expansion principally affected its semi-fluid mantle causing it to swell up forming several expansion cracks over the sialic crust, through which widespread extrusion of basaltic lava and degassing of volatiles took place associated with the phenomenon of sea floor spreading or ocean enlargement. Simultaneously, while due to
